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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 23 (1994), S. 0 
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The localization of fibroblast growth factor-1 (FGF-1) and FGF-2 in human oral squamous cell carcinoma (SCC) was examined by immunohistochemical techniques using anli-FGF-1 and anti-FGF-2 monoclonal antibodies. Immunofluorescence staining of two oral SCC cell lines revealed that growing cancel-cells were intensely positive for both FGF-1 and FGF-2, but confluent cells showed a faint immunostaining. In addition, two molecular mass species of FGF-1(16 and 18 kDa) and one of FGF-2 (18 kDa) were identified by Western blot in cell extracts derived from growing SCC cells, but not from confluent SCC cells. The growing cell extracts significantly stimulated the proliferation of human umbilical vein endothelial cells. Immunoperoxidase staining of 13 oral SCC cases showed that both well-differentiated and poorly-differentiated cancer cells were positive for FGF-1 and FGF-2 with high frequency and intensity as compared to normal oral epithelium. These results indicate that SCC cells express high levels of endogenous FGF-1 and FGF-2, and suggest that these growth factors may contribute to cancer cell growth.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Fibroblast growth faclor-1 (FGF-l) and FGF-2 are heparin-binding polypeplides that are potent mitogens for neoplastic cells. In this study, fibroblast growth factor-1 (FGF-l), FGF-2, and fibroblast growth factor receptor-1 (FGfR-1) were immunohistochemically analyzed in 10 patients with pleomorphic adenoma of the salivary gland by using specific monoclonal antibodies. The tumor tissues were histopathologically classified as: tubular, solid, myxoid or chondroid. Both FGF-1 and FGF-2 were immunohistochemically identified in the tumor cells of all histological types. In addition, immunoreactive FGF-2 was also found in the basement membrane of tubular type tumor cells. Conversely. FGfR-1-positive tumor cells were essentially confined to the tubular and solid areas of tumors. Tumor cells in the myxoid and chondroid areas were FGfR-1 immunonegative. These results suggest that the co-expression of FGF and its receptor appears to be related to the proliferative activity of tumor cells in the tubular and solid areas, whereas loss of FGF receptor expression may be associated with the differentiation of tumor cells into myxoid and chondroid tissue types.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0843
    Keywords: Cisplatin ; Iodized oil ; Ehrlich-ascites tumor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The response of Ehrlich ascites tumor and the effect on normal tissues (kidney and small intestine) of CD-1 mice were evaluated after intralesional (i. l.) injection of cisplatin dissolved in urografin and lipiodol, which is henceforth termed CUL suspension. The results obtained were compared with the effects of i. p. and i. l. injections of cisplatin dissolved in sterile distilled water. Each of these treatment modalities involves the injection of 10 mg/kg cisplatin. The tumor response was evaluated by tumor growth-delay studies as well as by determining the percentage of cells in the S phase. Toxicity studies were accomplished by evaluation of the change in the body weight of mice and also by S-phase studies. S-phase fraction analyses were done with the use of the Cell Proliferation Kit. This commercial kit was used to measure bromodeoxyuridine (BrdU), a thymidine analogue that is incorporated into cells synthesizing DNA. Tumor, kidney, and small-intestine platinum concentrations were determined by measurement with a flameless atomic absorption spectrophotometer. The results of the tumor growth-delay studies showed that i. p. injection, with water being the drug carrier, produced the weakest antitumor effect, whereas i. l. injection of cisplatin, with lipiodol being the drug carrier, evoked the most enhanced effect. This finding was substantiated by BrdU-uptake analysis of tumor cells, wherein i. p. injections yielded the highest S-phase fraction and CUL treatment gave the lowest. Toxicity studies showed that a very significant decrease in body weight occurred in mice receiving i. p. treatment. No significant decrease in body weight was noted after i. l. treatment. BrdU analysis revealed that DNA synthesis in kidney cells and crypt cells of the small intestine was depressed after i. p. treatment. On the other hand, no significant effect was observed in the kidney or small intestine of CUL-treated mice. A correlation between the effects of the various treatment modalities (on tumors, kidney, and small intestine) and the retention of cisplatin was found.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0843
    Keywords: Key words: Cisplatin -– Iodized oil -– Ehrlich-ascites tumor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The response of Ehrlich ascites tumor and the effect on normal tissues (kidney and small intestine) of CD-1 mice were evaluated after intralesional (i. l.) injection of cisplatin dissolved in urografin and lipiodol, which is henceforth termed CUL suspension. The results obtained were compared with the effects of i. p. and i. l. injections of cisplatin dissolved in sterile distilled water. Each of these treatment modalities involves the injection of 10 mg/kg cisplatin. The tumor response was evaluated by tumor growth-delay studies as well as by determining the percentage of cells in the S phase. Toxicity studies were accomplished by evaluation of the change in the body weight of mice and also by S-phase studies. S-phase fraction analyses were done with the use of the Cell Proliferation Kit. This commercial kit was used to measure bromodeoxyuridine (BrdU), a thymidine analogue that is incorporated into cells synthesizing DNA. Tumor, kidney, and small-intestine platinum concentrations were determined by measurement with a flameless atomic absorption spectrophotometer. The results of the tumor growth-delay studies showed that i. p. injection, with water being the drug carrier, produced the weakest antitumor effect, whereas i. l. injection of cisplatin, with lipiodol being the drug carrier, evoked the most enhanced effect. This finding was substantiated by BrdU-uptake analysis of tumor cells, wherein i. p. injections yielded the highest S-phase fraction and CUL treatment gave the lowest. Toxicity studies showed that a very significant decrease in body weight occurred in mice receiving i. p. treatment. No significant decrease in body weight was noted after i. l. treatment. BrdU analysis revealed that DNA synthesis in kidney cells and crypt cells of the small intestine was depressed after i. p. treatment. On the other hand, no significant effect was observed in the kidney or small intestine of CUL-treated mice. A correlation between the effects of the various treatment modalities (on tumors, kidney, and small intestine) and the retention of cisplatin was found.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Histochemistry and cell biology 2 (1962), S. 427-434 
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Acid phosphatase activity has been studied in cold microtome sections and using simultaneous azo coupling method in developing teeth and bone, and serial sections were made for the demonstrations of alkaline phosphatase. 1. In developing teeth, strongest activity of acid phosphatase was found in the distal portion of high columnar ameloblasts associated with heavy calcification in the rodent incisor, and ameloblasts and odontoblasts in adjacent occlusal surface in molar teeth. However, the activity of immatured ameloblast and crevicular aspects of molar were weaker. 2. In the epiphyseal bone trabeculae a striking acid phosphatase reaction was found. 3. As regards to the effects of decalcifying solutions to the enzymatic activity, the use of EDTA decalcifying agent (10% and pH 7 to 4) showed the best results. That is, a decrease of decalcifying time and a greater preservation of acid phosphatase activity.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1613-9674
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The incidence of osteomyelitis of the jaw has been reduced because of the recent progress in antibiotic therapy. Unlike typical cases recorded in the usual textbooks, very prolonged and difficult types of chronic osteomyelitis are also encountered. In these cases, it is difficult to recover completely by means of antibiotic therapy alone, and therefore surgical intervention is inevitable. Among 2020 cases recorded in the inpatient clinic from August 1974 to February 1987, 180 cases (8.9%) were cases of inflammatory disease (Table 1), and 46 out of 180 cases were diagnosed as osteomyelitis (25. 6%). Of the 46 cases of osteomyelitis 22 of them were classified as chronic osteomyelitis (47.8%), 13 as acute osteomyelitis (28.3%), and 8 as radiation osteomyelitis (17.4%) (Table 2). The three cases presented in this study required surgical intervention. In one case of chronic osteomyelitis surgical treatment, extraction of a tooth and sequestrectomy, was performed. Another two cases, which occurred in patients with radiation osteomyelitis, required sequestrectomy and segmental mandibulectomy, respectively.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1437-7772
    Keywords: oral cancer ; cisplatin ; pirarubicin ; intra-arterial infusion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background A comparison of chemotherapy with PP (cisplatin, CDDP; and peplomycin, PEP) and TPP (4′-O-tetrahydropyranyladriamycin: THP-ADM, CDDP and PEP) in the treatment of oral cancer. Methods This study included 159 out of 199 patients who had visited the collaborating institutions' hospitals, and who had been registered in the Examination Meeting of Chemotherapy for Oral Cancer during the 2-year period from June 1990 to May 1992. Ninety-seven patients underwent PP therapy and 62 underwent TPP therapy. In PP intravenous infusion therapy, 60–80 mg of CDDP per m2 was administered on day 1, followed by infusion of 5–7.5 mg of PEP per m2 from day 2 until day 6. In the PP intra-arterial infusion therapy, in which the drugs were infused in a retrograde fashion into the superficial temporal artery, 50–70 mg of CDDP per m2 was infused on day 1, followed by infusion of 5 mg of PEP per m2 from day 2 until day 6. In both the intravenous and intra-arterial TPP therapy regimens, 20 mg of THP-ADM per m2 was infused on day 1, followed by infusion of 50 mg of CDDP per m2 on day 2, and infusion of 5 mg of PEP per m2 from day 3 until day 7. Results The response rate of TPP therapy was 64.5%, which was not significantly different from the 53.6% obtained with PP therapy. However, the complete response (CR) rate with TPP therapy was 22.6%, significantly higher than the 9.3% with PP therapy. The response rate of TPP intra-arterial infusion therapy was particularly high (92.3%), and significantly higher than that of PP therapy. The response rate of TPP intra-arterial infusion therapy was very high (100.0%) in stage I and II patients and in primary cancers of the tongue, gingiva, buccal mucosa, and hard palate. The toxicity of TPP and PP therapies resulted in a high incidence of nausea/vomiting and anorexia. Skin disorders and epilation were observed at high rates with TPP therapy, and incidences were particularly high (100.0%) in the TPP intra-arterial infusion therapy group. The incidence of leukopenia was high in patients treated with TPP therapy but was not severe. Conclusion The results of this study suggest that TPP therapy is more effective than PP therapy in the treatment of oral cavity cancer. Although TPP therapy was associated with skin abnormalities, alopecia, and leukopenia as side effects, there was no influence on subsequent treatment. TPP intra-arterial infusion therapy appears promising in the treatment of oral cancer.
    Type of Medium: Electronic Resource
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